package com.leo.chapter14;

import java.util.concurrent.Semaphore;
import java.util.concurrent.locks.AbstractQueuedSynchronizer;
import java.util.concurrent.locks.ReentrantLock;

/**
 *
 * @author xuexiaolei
 * @version 2017年10月20日
 */
public class SourceCode {
    public static void main(String[] args) {
        AbstractQueuedSynchronizer AbstractQueuedSynchronizer = null;
        ReentrantLock reentrantLock = null;
        Semaphore semaphore = null;
    }
}
